We have Grade Access ('View Grade Detail') enabled to allow students to see assignment information.
We have access to the Marking Period % turned off.
However, the Assignment Types that make up the Marking Period % continue to show sum percentage scores to students.
Additionally, these percentage scores factor in assignments that may be marked as 'Add to cum. Grade', in addition to not having 'Publish Grade' checked, making the later irrelevant. Unmarking 'Add to cum. Grade' would remove this from affecting what the student sees, but would also mean that the teacher cannot see how the grade affects the student Marking Period % (which we hid from students on purpose for this reason).
Our teachers have also asked about the ability to hide the percentages from student view. If they are using the points system and give small point assignments, the percentage showing in the student detail for the quiz raises lots of questions from students and parents, in particular those in Upper School as they are are super focused on every point as it relates to college admissions.
Related idea: https://blackbaudk12.ideas.aha.io/ideas/K12OC-I-1948